http://www.issvd.org/Genital_Hygiene.pdf
What is the best way of keeping myself "clean"?
Gently separate the outer "lips" and bathe the inner skin with plain water, using your hands only.
http://www.medformation.com/ac/crswa...thral.syndrome
How can I take care of myself?
Drink 6 to 8 glasses of fluids each day to cleanse the bladder and rest of the urinary tract.
Keep the genital area clean, using clear water. Do not wash the genital area with soap
These articles were written in the past couple of years.
After googling this, I found plenty of articles saying that unscented soap is fine (so much for women's magazines), but nearly all of them said don't use a perfumed soap. There are still obviously advocates for the water only method.